C# Junior's Essential Guide: Unveiling Answers to FAQs - Set #2

By pajus, 17 June, 2023
  1. What are the different types of loops in C# and when to use each?
    • C# provides several loop structures, including for, foreach, while, and do-while.
    • Use the for loop for iterating a specific number of times.
    • The foreach loop is used for iterating over collections or arrays.
    • The while loop is suitable for executing a block of code while a condition is true.
    • The do-while loop is similar to the while loop, but it executes the code block at least once before checking the condition.
  2. What is the purpose of the using statement in C#?
    • The using statement in C# ensures the proper disposal of resources, such as database connections or file streams.
    • It provides a convenient way to handle objects that implement the IDisposable interface.
    • By using the using statement, you can ensure that the resources are released automatically, even if exceptions occur within the block.
  3. What is the difference between a struct and a class in C#?
    • Structs and classes are both used to define types in C#, but they have some key differences.
    • Structs are value types, stored on the stack, while classes are reference types, stored on the heap.
    • Structs are typically used for lightweight objects, while classes are suitable for more complex objects with behaviors and inheritance.